JP2001260048A - Driven fastener feeder for driver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a general-purpose nail feeder including feeding device that can house even connected nails of different connection forms, for example, for platform frame construction and Japanese traditional timber frame construction, having different positions of nail connecting members along the nails and conventionally requiring nailers with dedicated nail feeders. SOLUTION: Feed claws 21a to 21c, 22a and 22b and nonreturn claws 23a to 23c, 24a and 24b are positioned off connecting members w1 and w2 on connected nails for platform frame construction and Japanese traditional timber frame construction to thus permit the connected nails of different connection forms to be set in place and offer a general-purpose nailer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driving tool supplying device for supplying driving tools one by one to a driving machine body in a driving machine such as a nail driving machine.

[0002]

2. Description of the Related Art As shown in, for example, Japanese Patent Application Laid-Open No. 10-315152, this type of driving tool supply device is a so-called connecting driving tool in which a number of driving tools are connected in parallel. It has a function of feeding one pitch at a time in conjunction with the driving operation. The driving tool supply device is attached to a driver guide of the driving machine main body. Further, a magazine for accommodating the connected driving tool in a wound state is attached to the driving tool supply device. When one end of the connected driving tool stored in a wound state in this magazine is pulled out and set in the driving tool supply device, and the driving machine body is operated in this state, the driving tool operates in conjunction with the driving operation of the driving machine body. When the supply device is operated, the connection driving tools are fed one pitch at a time, whereby the driving tools are fed one by one into the driver guide.
One driving tool supplied into the driver guide is driven out from the distal end of the driver guide by a striking action of the driver moving down in the driver guide.

[0003]

In the driving tool supply device having the above functions, the driving tool has been generally used within a certain range with respect to the length of the driving tool. However, it does not correspond to a connection driving tool having a different position of the connection member in the length direction of the connection member with respect to the portion. For this reason, in the conventional driving tool supply device, the types of connecting driving tools that can be set with respect to the connection form are limited to a very narrow range, and therefore, the versatility thereof is low. It was necessary to prepare a special driving machine according to the situation.

[0004] Generally, this type of driving tool supply device includes:
In order to prevent the feed pawl reciprocating in the driving direction of the driving tool in conjunction with the driving operation of the driving machine body and the connecting driving tool from returning together when the feeding pawl returns in the feeding direction of the counter driving tool. Since the positions and the like of the feed claws and the check claws are fixed, there is a case where it is not possible to set the connecting driving tools having different pitches of the driving tools and the positions of the connecting wires and the like.

FIGS. 7 to 9 show various types of connection nails as an example of a connection driving tool. The first type connecting nail N1 shown in FIG. 7 is a wire connecting nail generally used in a two-by-four construction method, and has a configuration in which many nails n1 to n1 are connected in parallel by two wires w1 and w2.
The pitch of the nails n to n of the first type connecting nail N1 is, for example, 8
mm. In addition, two connecting wires w1,
w2 is bridged at positions 20 mm and 38 mm from the nail head nh, respectively. Second type connecting nail N2 shown in FIG.
Is generally used in a conventional construction method, and has a configuration in which a large number of nails n to n are connected in parallel by two wires w1 and w2. Each nail n to n of this connecting nail N2
Is set to, for example, 6 mm. Also, the two connecting wires w1 and w2 are respectively 12 from the nail head nh.
mm and 23 mm.

[0006] The connecting nail N3 shown in FIG.
It is generally used for the two-by-four construction method as well as
A large number of nails n to n are connected to two resin belts (resin belt j).
1, j2) and are connected in parallel, and are generally called resin connection nails. The pitch of the nails n to n of the resin connection nail N3 is set to 5 mm. Less than,
If necessary, the wire connecting nail N1 shown in FIG. 7 is referred to as “one kind of connecting nail N1”, the wire connecting nail N2 shown in FIG. 8 is called “two kinds of connecting nail N2”, and the resin connecting nail N3 shown in FIG. To "3
Seed connection nail N3 ".

The above three types of connecting nails N1 to N3
Can not be set in the same driving tool supply device in the past, and therefore, it was necessary to prepare a driving machine equipped with a dedicated driving tool supply device. An object of the present invention is to provide a highly versatile driving tool supply device which can cope with a connection driving tool having a different form mainly with respect to the position of a connecting member in a wider range than before, and furthermore, a driving machine. .

[0008]

SUMMARY OF THE INVENTION Accordingly, the present invention provides
A driving tool supply device having the configuration described in each of the above claims. According to the driving tool supply device according to the first aspect, since the feed pawl and the check pawl are arranged at positions avoiding the connecting members of at least three types of connecting driving tools, the feed pawl and the check pawl are provided. The at least three types of connecting tools can be set without interfering with the connecting member, thereby increasing the versatility of the supply device and, consequently, the driving machine. There is no need to prepare a driving machine. That is,
For example, three types of connecting nails having different connection forms can be used without replacing the nailing machine and the nail feeding device.

Normally, the check nail is provided next to the driving tool (the second nail) supplied into the driver guide.
Has a function of preventing the connection driving tool from moving in the opposite supply direction by being locked to the second nail, for example, an auxiliary check claw at a position where it is locked to a further rear driving tool. Is provided, the connecting member between the driving tool (the second nail) locked by the check nail and the driving tool (the third and subsequent nails) locked by the auxiliary check nail is cut. Even in this case, it is possible to prevent the connection driving tool from returning in the non-supply direction when the feed pawl moves in the non-supply direction. Further, since the auxiliary check claw is provided integrally with the check claw, the auxiliary check claw can be provided without significantly increasing the cost. Further, since the feed pawl, the check pawl, and the auxiliary check pawl are provided not on the door side but on the feed base side, the driving tool can be quickly and reliably set to the driving tool supply device.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to FIGS.
This will be described with reference to FIG. In this embodiment, an air nailer is illustrated as an example of a driving machine, a nail is illustrated as an example of a driving tool, and a connecting nail is illustrated as a connecting driving tool. Further, the first to third types of connection nails N1 to N3 are exemplified again as three types of connection nails having different connection forms. The first type connecting nail N1 has two wires w1,
A large number of nails n to n are connected in parallel at a pitch of 8 mm by w2 (FIG. 7), and a second type of connection nail N2 is a plurality of nails n to n pitched by the same two wires w1 and w2. 6 mm and connected in parallel (FIG. 8). Each nail n of the first type connecting nail N1 is about 3 mm in thickness and 50 mm in length.
Each of the nails n of the second-type connecting nail N2 has a thickness of about 2 m.
m, a nail with a length of 50 mm.

The third type connecting nail N3 is formed by a large number of nails n through two resin belts (resin belts j1 and j2).
n are connected in parallel at a pitch of 5 mm.
Has a thickness of about 3 mm and a length of 50 mm (FIG. 9). Generally, a first-class connecting nail N1 and a third-class connecting nail N3
Is used for so-called two-by-four construction, and the second type connecting nail N2 is conventionally used for construction. FIG. 1 shows a driving tool supply device 10 of the present embodiment described below.
2 shows a state in which a first-type connecting nail N1 is set, FIG. 2 shows a state in which a second-type connecting nail N2 is set, and FIG. 3 shows a state in which a third-type connecting nail N3 is set. In the following description, when there is no need to particularly distinguish the first to third type connecting nails N1 to N3, they are simply referred to as connecting nails N. The same reference sign n is used for all the nails constituting the connecting nail N. However, when it is necessary to distinguish the positions of the nails n to n (supply order), the nail n located in the driver guide 2 is particularly referred to as a first nail n1, and hereinafter the second nail n2, 3
It is called guard n3, ...

Next, in the present embodiment, the nailing machine main body 1
The description and illustration are omitted because there is no need to particularly change the conventional configuration, but reference numeral 2 in the figure indicates a cylindrical driver guide protruding from the lower surface of the nailing machine main body 1. . The inner peripheral side of the driver guide 2 is a nail driving path, and the driver moves up and down in the nail driving path. The driver is attached to a striking piston that moves up and down by the action of compressed air inside a cylinder housed in the nailer body 1. When the striking piston moves down due to the supply and exhaust of compressed air to and from the nailing machine body 1, the driver moves down in the driver guide 2 and one nail n supplied into the driver guide 2 is hit and the driver guide is driven. 2 is launched from the lower end. 1 to 3,
Reference numeral 3 denotes a contact arm. The contact arm 3 is provided at the lower end of the driver guide 2 so as to be vertically movable. When the contact arm 3 is moved upward by pressing the nailing machine main body 1 while the contact arm 3 is in contact with the nailing material, a trigger (not shown) of the nailing machine main body 1 is activated. The pulling operation becomes effective and the nailing operation is performed.

The supply of the nails n into the driver guide 2 is performed by the driving tool supply device 10 of the present embodiment described below. The driving tool supply device 10 according to the present embodiment includes a supply base 11 that is provided in a state in which it protrudes laterally from an axially long nail insertion opening 2 a formed in the side of the driver guide 2.
And a door 12 rotatably supported by the driver guide 2 via a support shaft 13 and capable of opening and closing the supply base 11. The connection nail N is set between the supply base 11 and the door 12 along the surface direction of the supply base 11. A step portion which is lower by one step is formed near the upper part of the surface of the supply base 11 (the surface on the side visible in FIGS. 1 to 3), and this step guides the head of each nail n of the connecting nail N. The head guide portion 11c is provided for the purpose. A nail magazine 14 is attached to the tip of the supply base 11.
This nail magazine 14 is provided with wound connection nails N (first type to
The third connecting nails N1 to N3) are loaded, and the distal end thereof is set in the driving tool supply device 10. In the figure, connecting nail N
Only the part set in the driving tool supply device 10 is shown.

A nail feed cylinder 15 is mounted on the tip side of the supply base 11. This nail feed cylinder 15
The inner rod (not visible in the figure)
Extend toward the driver guide 2 on the back side of the driver. A nail feed claw 20 is attached to the tip of the rod via a support shaft 16 so as to be rotatable up and down (in a direction perpendicular to the plane of FIG. 1 to FIG. 3 and in a vertical direction in FIGS. 4 to 6). The nail feed claw 20 has a forked shape composed of two feed claw arms 21 and 22. 1 to 3, the upper feed pawl arm 21 is referred to as a first feed pawl arm 21, and the lower feed pawl arm 22 is referred to as a second feed pawl arm 2.
Two. Both feed claw arms 21 and 22 move up and down integrally. The nail feed claw 20 is urged by a spring (not shown) interposed between the nail feed claw 20 and the tip of the rod in the nail feed cylinder 15 in a direction to rotate the feed arms 21 and 22 upward.

A total of three first to third feed claws 21a to 21c are formed on the top surface of the tip of the first feed claw arm 21. In addition, a total of 2
The first and second feed claws 22a and 22b are formed. The feed claws 21a to 21c of the first feed claw arm 21 are
It protrudes to the surface side of the supply base 11 through the upper first window 11 a formed in the supply base 11. Also,
The feed pawls 22a and 22b of the second feed pawl arm 22 are projected to the front side of the supply base 11 through the lower second window 11b in the figure. As shown in the figure, when the first nail n1 is set in the nail driving passage of the driver guide 2,
Between the first feed claw 21a and the second feed claw 21b of the first feed claw arm 21, the first feed claw 22 of the second feed claw arm 22;
The second nail n2 is located between the first nail 22a and the second feed claw 22b.
The third feed claw 21c of the first feed claw arm 21 is located on the front side of the second nail n2, like the first feed claw 21a. The movement of the connecting nail N in the nail feeding direction is performed by moving the nail feeding nail 20 in the nail feeding direction. At this time, the second feeding nails 21b and 22b mainly engage with the rear side of the nail n, and It functions to feed the connecting nail N by moving in the supply direction, and this corresponds to the feeding nail described in the claims. The three feed claws (first feed claws 21a, 22a and third feed claws 21c) located on the front side of the second nail n2, when the second nail n2 is the end of the connecting nail N (the last nail), The last nail has a function of feeding the nail into the nail driving passage.

Next, the first feed claw arm 2 of the nail feed claw 20
A first non-return claw arm 23 and a second non-return claw arm 24 are attached to the upper side of the first and the second lower side of the feed claw arm 22 via a support shaft 25 so as to be vertically rotatable. I have. The two non-return claw arms 23 and 24 are rotatable independently of each other, and are urged by springs 26 and 27, respectively, in a direction of turning upward (on the surface side of the nail supply base 11). A total of three check pawls 23a to 23c are formed on the rotation tip side of the first check claw arm 23. Hereinafter, the first non-return claw 23a, the second non-return claw 23b, and the third
This is called a check claw 23c. Further, two check pawls 24a and 24b are formed on the rotation tip side of the second check pawl arm 24. Hereinafter, the fourth check pawl 24a and the fifth check pawl 24b are referred to from the tip side. The second check pawl 23b of the first check pawl arm 23 and the fourth check pawl 24a of the second check pawl arm 24 correspond to the check pawl described in the claims, and the first check pawl Third check pawl 23c of arm 23 and second check pawl arm 2
The fourth fifth non-return claw 24b corresponds to the auxiliary non-return claw also described in the claims.

When the setting of the first nail n1 in the nail driving passage is completed, the second nail n2 is moved from the nail head side to the first check nail 2
3a and the second check claw 23b, and the nail tip side is positioned between the fourth check claw 24a and the fifth check claw 24b. It is located on the bridge. Also, the third check pawl 23c and the fifth check pawl 24b
In the case of the first type connecting nail N1 (FIGS. 1 and 4), the third nail n3 is located on the front side of the second type and the third type connecting nail N2, N
In the case of No. 3 (FIGS. 2, 3, 5, and 6), the fourth nail n4 is located. Second check pawl 23b and fourth check pawl 24a
However, it has a function of preventing the connecting nail N from retreating when the nail feed claw 20 retreats. The functions of the third check pawl 23c and the fifth check pawl 24b (auxiliary check pawl) will be described later. When the last nail of the connecting nail N becomes the second nail n2 as described above, the first non-return nail 23a becomes the last nail n2.
Has a function of maintaining an appropriate position (posture) at the stage of feeding into the nail driving passage by the nail feeding claw 20.

The first to third claw portions 21a of the nail feed claw 20
To 21c, the first claw portion 22a, the second claw portion 22b, and the first to first claw portions 22a and 22b.
The positions of the fourth non-return claws 23a to 23c and 24a in the nail axis direction are all interfered by the connecting members (wires w1, w2, resin belts j1, j2) of the first to third connecting nails N1 to N3. Not set to a position. That is, first, as shown in FIG. 1, the wire w1 on the upper side of the first type connecting nail N1 is connected to the first and second feed claws 21a and 21b with respect to the position in the nail axis direction.
The lower wire w2 is set between the second feed claw arm 22 and the third feed claw 21c.
Is set on the upper side. Therefore, both wires w1 and w2
Does not interfere with the feed claws 21a to 21c, 22a, 22b and the check claws 23a to 23c, 24a, 24b.
1 can be set smoothly.

Next, as shown in FIG.
The upper wire w1 is set between the first check claw arm 23 and the first feed claw arm 21, and the lower wire w2
Is set between the first feed claw arm 21 and the second feed claw arm 22. For this reason, both of the wires w1 and w2 have the feed claws 21a to 21c, 22a and 22b and the check pawl 2
Without interfering with 3a-23c, 24a, 24b,
Thereby, the second-type connecting nail N1 can be set smoothly in the nail supply device 10.

Also, as shown in FIG.
Both upper and lower resin belts j1 and j2 are set between the first feed claw arm 21 and the second feed claw arm 22,
Feeding claws 21a to 21c, 22a, 22b and check claw 23
a to 23c, 24a, and 24b. For this reason, the third-type connecting nail N3 can also be smoothly set in the nail supply device 10.

On the surface side of the supply base 11, a magnet 17 is embedded for preventing the set connecting nail N from being lifted or displaced from the surface of the supply base 11. The attraction force of the magnet 17 is set within a range that does not hinder the movement of the connecting nail N in the nail supply direction.

According to the nail feeding device 10 of the present embodiment configured as described above, the nail feeding claws 21a to 21c, 22a,
By devising the positions of the nails 22b and the check claws 23a to 23c, 24a and 24b in the nail axis direction, the first to third kinds of connecting nails N can be prevented without interfering with the connecting members.
1 to N3 can be set. Therefore, these three
The type of connecting nails N1 to N3 can be used by one nailing machine, and thereby the versatility of the nailing machine can be enhanced.

In this embodiment, the first check pawl arm 23 is provided with three first to third check pawls 23a to 23c, and the second check pawl arm 24 is provided with two 4th and 5th
Check claws 24a and 24b are provided. In both the check pawl arms 23 and 24, the third and fifth check pawls 23c and 24b (auxiliary check pawls) located rearmost in the nail feed direction are of the first type to the following types.
It is located behind the third nail n3 or the fourth nail n4 with respect to the third connecting nails N1 to N3, and has a function of preventing the connecting nail N from moving in the opposite supply direction.

Here, for example, the connecting member (not only between the first nail n1 and the second nail n2 but also between the second nail n2 and the third nail n3 due to the impact of the driver hitting the first nail n1. Wire w1, w2, resin belt j1, j
2) may be disconnected. In this case, 2
The nail n2 is prevented from moving in the non-supply direction by the second check claw 23b and the fourth check claw 24a, but the third and subsequent nails n3, n4 (hereinafter, reference numerals are omitted in the figure),. Conventionally, the connecting nail N) interferes with the feeding claws 21b and 22b when the nail feeding claw 20 retreats and is returned in the opposite supply direction, and as a result, there is a problem that the nail feeding is not performed thereafter. . In this regard, according to the supply device 10 of the present embodiment, the third and fifth check nails 23c and 24b (auxiliary check nails) are provided behind the third nail n3 or the fourth nail n4. Therefore, such a problem does not occur, and the nail can be reliably fed.

The third check pawl 23c is connected to the first check pawl arm 2 together with the first and second check pawls 23a and 23b.
3 and the fourth non-return claw 24a and the fifth non-return claw 24b are integrally formed on the second non-return claw arm 24, so that the above function can be obtained without increasing the cost. Can be. Further, the feed claws 21a to 21c, 2
2a, 22b and first to fifth check claws 23a to 23c, 2
The connecting nails 4a and 24b are provided not on the door 12 side but on the supply base 11 side, so that the connecting nail N can be quickly and reliably set in the driving tool supply device 10.

Various modifications can be made to the embodiment described above. For example, as the connection nail N that can be loaded into the supply device 10 illustrated, first to third types of connection nails N1 to N1 are used.
Although N3 has been exemplified, a connecting nail N having a connection form different from these three kinds of connection forms may be configured to be loadable, and a connection nail N having three or more different connection forms may be mounted. You can also. Further, in the illustrated embodiment, an air nailing machine is illustrated as an example of the driving machine, and the connecting nail N (nail n) is illustrated as an example of the driving machine. However, the present invention is applicable to a driving tool supply device of another driving machine. Can also.

[Brief description of the drawings]

FIG. 1 is a plan view of a nail supply device according to an embodiment of the present invention. This figure shows a state where the door is opened. This figure shows a state where the first-type connecting nail N1 is set.
The connecting nail N1 is indicated by a two-dot chain line.

FIG. 2 is a plan view of the nail supply device according to the illustrated embodiment. This figure shows a state where the door is opened. This figure shows a state where the second-type connecting nail N2 is set.
The second type connecting nail N2 is indicated by a two-dot chain line.

FIG. 3 is a plan view of the nail supply device according to the illustrated embodiment. This figure shows a state where the door is opened. This figure shows a state where the third-type connecting nail N3 is set. The third type connecting nail N3 is shown by a two-dot chain line.

FIG. 4 is a sectional view taken along line (4)-(4) of FIG. 1;

FIG. 5 is a sectional view taken along line (5)-(5) of FIG. 2;

6 is a sectional view taken along line (6)-(6) of FIG.

FIG. 7 is a plan view of the first type connecting nail.

FIG. 8 is a plan view of a second type connecting nail.

FIG. 9 is a plan view of a third type connecting nail.

[Explanation of symbols]

N: connecting nail, n: nail N1: first-type connecting nail, N2: second-type connecting nail, N3: third
Seed connecting nail w1, w2 ... wire, j1, j2 ... resin belt 1 ... nailing machine body 2 ... driver guide 10 ... nail supply device (drive tool supply device) 11 ... supply base 12 ... door 14 ... nail magazine 15 ... nail Feed cylinder 20: nail feed nail 21a: first feed nail, 21b: second feed nail, 21c: third feed nail 22a: first feed nail, 22b: second feed nail 23a: first check nail, 23b ... Second check pawl, 23c: third check pawl 24a: fourth check pawl, 24b: fifth check pawl

Claims (1)

[Claims] A feed base provided on a driver guide of a driving machine main body; a feed claw provided on the supply base for moving a connecting tool set on the supply base in a supply direction toward the driver guide; A driving tool supply device that is provided on the supply base and includes a check claw that prevents movement of the connection driving tool in a counter-supply direction, wherein the feed claw and the check claw are provided on the connection driving tool. A connecting member for connecting each driving tool is arranged at a position avoiding each connecting member of at least three types of connecting driving tools different in a position in a longitudinal direction of the driving tool, and in a supply direction rear of the check claw, A driving tool supply device, wherein an auxiliary check pawl for locking the driving tool in the supply direction rearward of the driving tool locked by the check claw is provided integrally with the check claw.